[development] Why do we avoid auto-incrementing db columns?

[David Strauss]

Separate counters are far more standard. MySQL is weird by having
auto-increment columns but not counters.

Now, there are a few things we could do to speed up Drupal's mechanism
for emulating counters in MySQL...

Barry Jaspan wrote:
> Could someone either clue me in or point to a prior discussion about
> why Drupal avoids using auto-incrementing database columns?  If it is
> database compatibility, which versions of which databases that we
> support do not have it?
> 
> Thanks,
> 
> Barry
> 

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